Mercurial > prosody-modules

annotate mod_statistics_statsman/mod_statistics_statsman.lua @ 5491:7842502c1157

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mod_http_debug: Log some extended info about requests If you point something external at this module, you don't get the response body back, hence it can be useful to see some details in the log as well.
author Kim Alvefur <zash@zash.se>
date Fri, 26 May 2023 15:37:15 +0200
parents bac3dae031ee
children
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2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
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1 module:set_global();
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2
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3 local statsman = require "core.statsmanager";
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4 local time_now = require "util.time".now;
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5 local filters = require "util.filters";
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6 local serialize = require "util.serialization".serialize;
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7
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bac3dae031ee Add note of incompatibility with trunk since 5f15ab7c6ae5
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8 assert(statsman.get_stats, "not compatible with trunk based on openmetrics");
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9
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10 local statistics_interval = module:context("*"):get_option_number("statistics_interval", 60);
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11 if module:context("*"):get_option("statistics", "internal") ~= "internal" then
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12 module:log("error", "Not using internal statistics, can't do anyting");
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13 return;
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14 end
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15
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16 local sessions = {};
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17
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18 local name_map = {
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19 ["start_time"] = "up_since";
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20 ["cpu.percent:amount"] = "cpu";
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21 ["cpu.clock:amount"] = "cpu_total";
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3a06b0b6ba67 mod_statistics_statsman: Update for change stats type change in mod_measure_memory
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22 ["memory.allocated_mmap:amount"] = "memory_allocated_mmap";
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23 ["memory.allocated:amount"] = "memory_allocated";
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24 ["memory.lua:amount"] = "memory_lua";
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25 ["memory.returnable:amount"] = "memory_returnable";
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26 ["memory.rss:amount"] = "memory_rss";
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27 ["memory.total:amount"] = "memory_total";
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28 ["memory.unused:amount"] = "memory_unused";
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29 ["memory.used:amount"] = "memory_used";
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30 ["/*/mod_c2s/connections:amount"] = "total_c2s";
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31 ["/*/mod_s2s/connections:amount"] = "total_s2s";
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32 };
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33
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34 local function push_stat(conn, name, value)
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35 local value_str = serialize(value);
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36 name = name_map[name] or name;
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37 return conn:write((("STAT %q (%s)\n"):format(name, value_str):gsub("\\\n", "\\n")));
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38 end
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39
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40 local function push_stat_to_all(name, value)
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41 for conn in pairs(sessions) do
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42 push_stat(conn, name, value);
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43 end
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44 end
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45
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46 local session_stats_tpl = ([[{
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47 message_in = %d, message_out = %d;
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48 presence_in = %d, presence_out = %d;
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49 iq_in = %d, iq_out = %d;
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50 bytes_in = %d, bytes_out = %d;
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51 }]]):gsub("%s", "");
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52
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53
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54 local jid_fields = {
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55 c2s = "full_jid";
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56 s2sin = "from_host";
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57 s2sout = "to_host";
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58 component = "host";
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59 };
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60
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61 local function push_session_to_all(session, stats)
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62 local id = tostring(session):match("[a-f0-9]+$"); -- FIXME: Better id? :/
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63 local stanzas_in, stanzas_out = stats.stanzas_in, stats.stanzas_out;
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64 local s = (session_stats_tpl):format(
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65 stanzas_in.message, stanzas_out.message,
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66 stanzas_in.presence, stanzas_out.presence,
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67 stanzas_in.iq, stanzas_out.iq,
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68 stats.bytes_in, stats.bytes_out);
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69 local jid = session[jid_fields[session.type]] or "";
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70 for conn in pairs(sessions) do
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71 conn:write(("SESS %q %q %s\n"):format(id, jid, s));
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72 end
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73 end
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74
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75 local active_sessions = {};
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76
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77 -- Network listener
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78 local listener = {};
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79
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80 function listener.onconnect(conn)
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81 sessions[conn] = true;
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82 push_stat(conn, "version", prosody.version);
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83 push_stat(conn, "start_time", prosody.start_time);
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84 push_stat(conn, "statistics_interval", statistics_interval);
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85 push_stat(conn, "time", time_now());
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86 local stats = statsman.get_stats();
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87 for name, value in pairs(stats) do
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88 push_stat(conn, name, value);
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89 end
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90 conn:write("\n"); -- Signal end of first batch (for non-streaming clients)
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91 end
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92
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93 function listener.onincoming(conn, data) -- luacheck: ignore 212
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94 -- Discarded
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95 end
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96
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97 function listener.ondisconnect(conn)
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98 sessions[conn] = nil;
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99 end
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100
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101 function listener.onreadtimeout()
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102 return true;
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103 end
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104
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105 local add_statistics_filter; -- forward decl
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106 if prosody and prosody.arg then -- ensures we aren't in prosodyctl
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107 setmetatable(active_sessions, {
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108 __index = function ( t, k )
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109 local v = {
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110 bytes_in = 0, bytes_out = 0;
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111 stanzas_in = {
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112 message = 0, presence = 0, iq = 0;
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113 };
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114 stanzas_out = {
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115 message = 0, presence = 0, iq = 0;
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116 };
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117 }
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118 rawset(t, k, v);
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119 return v;
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120 end
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121 });
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122 local function handle_stanza_in(stanza, session)
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123 local s = active_sessions[session].stanzas_in;
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124 local n = s[stanza.name];
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125 if n then
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126 s[stanza.name] = n + 1;
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127 end
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128 return stanza;
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129 end
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130 local function handle_stanza_out(stanza, session)
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131 local s = active_sessions[session].stanzas_out;
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132 local n = s[stanza.name];
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133 if n then
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134 s[stanza.name] = n + 1;
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135 end
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136 return stanza;
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Kim Alvefur <zash@zash.se>
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137 end
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Kim Alvefur <zash@zash.se>
parents:
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138 local function handle_bytes_in(bytes, session)
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Kim Alvefur <zash@zash.se>
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139 local s = active_sessions[session];
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140 s.bytes_in = s.bytes_in + #bytes;
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141 return bytes;
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parents:
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142 end
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Kim Alvefur <zash@zash.se>
parents:
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143 local function handle_bytes_out(bytes, session)
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144 local s = active_sessions[session];
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145 s.bytes_out = s.bytes_out + #bytes;
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146 return bytes;
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Kim Alvefur <zash@zash.se>
parents:
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147 end
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Kim Alvefur <zash@zash.se>
parents:
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148 function add_statistics_filter(session)
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Kim Alvefur <zash@zash.se>
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149 filters.add_filter(session, "stanzas/in", handle_stanza_in);
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150 filters.add_filter(session, "stanzas/out", handle_stanza_out);
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parents:
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151 filters.add_filter(session, "bytes/in", handle_bytes_in);
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parents:
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152 filters.add_filter(session, "bytes/out", handle_bytes_out);
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parents:
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153 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
154 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
155
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
156
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 function module.load()
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Kim Alvefur <zash@zash.se>
parents:
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158 if not(prosody and prosody.arg) then
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parents:
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159 return;
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Kim Alvefur <zash@zash.se>
parents:
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160 end
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Kim Alvefur <zash@zash.se>
parents:
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161 filters.add_filter_hook(add_statistics_filter);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
162
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Kim Alvefur <zash@zash.se>
parents:
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163 module:add_timer(1, function ()
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Kim Alvefur <zash@zash.se>
parents:
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164 for session, session_stats in pairs(active_sessions) do
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Kim Alvefur <zash@zash.se>
parents:
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165 active_sessions[session] = nil;
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Kim Alvefur <zash@zash.se>
parents:
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166 push_session_to_all(session, session_stats);
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Kim Alvefur <zash@zash.se>
parents:
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167 end
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Kim Alvefur <zash@zash.se>
parents:
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168 return 1;
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Kim Alvefur <zash@zash.se>
parents:
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169 end);
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Kim Alvefur <zash@zash.se>
parents:
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170
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Kim Alvefur <zash@zash.se>
parents:
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171 module:hook("stats-updated", function (event)
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Kim Alvefur <zash@zash.se>
parents:
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172 local stats = event.changed_stats;
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Kim Alvefur <zash@zash.se>
parents:
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173 push_stat_to_all("time", time_now());
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 for name, value in pairs(stats) do
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 push_stat_to_all(name, value);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 end
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Kim Alvefur <zash@zash.se>
parents:
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177 end);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
178
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 module:hook("server-stopping", function ()
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
180 push_stat_to_all("stop_time", time_now());
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
181 end);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 end
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183 function module.unload()
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
184 filters.remove_filter_hook(add_statistics_filter);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
185 end
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
186
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 if prosody and prosody.arg then
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188 module:provides("net", {
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
189 default_port = 5782;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
190 listener = listener;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
191 private = true;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
192 });
2558ece20e58 mod_statistics_statsman: Streaming access to statsmanager
Kim Alvefur <zash@zash.se>
parents:
diff changeset
193 end